Coupling device for chains, ropes, and the like



I Dec'. 2 1,1926. I

- A, JOHNSSON COUPLING DEVICE FOR CHAINS, ROPES, AND THE LIKE Filed Nov. 6/1925 Fatented Dec. 21,1926.

' Lanai ANDERS JoHnssoN', or swarms, SWEDEN.

COUPLING DEVICE FOR oIiAINs, ROZE'ES, AND THE L IKE. j

Application filed November 6, 1923, Serial No. 673,134, and in Sweden February 9,1923.

My invention relates to a coupling device for chains, ropes and the like and has for its object to be adapted to all cases where it is required to quickly and securely connect chains and the like or to fasten chains, ropes and the like into eyes, rings and the like.

The improved device comprises two adjacently arranged concentrically movable open rings which ae Connected with the ends of two interconnected chains 1n such a manner that the rings can be rotated relative to each other. In one position, the openings the contraryniay vary considerably.

in the rings register with each other, while upon a pull .on'the said chains the rings are rotated relativeto each other into such a position that the openings in the rings are displaced preferably about 180 in relation to each other. The invention is illustrated in the accom panying drawing, in which Figures 1 and 2 According to the drawing, the two adja" cently arranged open rings 1 and 2, each having an opening are preferably of the same diameter and are of semi-circular crosssection, as indicated in Figure 1, their ,flat faces being juxtaposed and sliding on each other.

However, the invention is not restricted to the particular shape of the rings which on crank lever 8 and' l respectively is fixed to each ring. vTo the projecting arm of each of thebell crank levers one end of a chain 5 and 6 respectively is connected, the other end of the chain being fastened to a common ring 7. The bell crank levers 3, 4 are pivotally mounted on and connected with each other by means of'a pin 8 arranged in the common centre of the two rings, the pin 8 p at the same time serving to hold the rings together. Obviously the revoluble connecting device for the rings may'also be arranged A bell I .ings in the rings register with each other, so

that a ring, an eye or the like, to which the coupling device shall be fastened, may be inserted therein. As soon as the least pull is exerted upon the ring 7, the rings 1 and 2 will be rotated in relation to each other into the position shown in Figure 2, in which case the coupling device is closed, the openings in the rings being displaced about 180. Anyrisk that the rings may open of themselves when in use is practically. impossible.

I' claim as my invention:

1. In a device of the class described, comprisingtwo juxtaposed concentric rings of ing an opening, means pivotally connecting the rings at their center, and means connected to said rings for relatively rotating said rings-about their pivotal axes to move said openings intoand out of registry with each other. I

2. Ina device of the class described, comprising two juxtaposedlconcentric rings, each having. an opening, a bell crank member securedto each'ring, acommonpivot interconnecting said bell crank; members in the center of said rings, a chainattached to the projecting arm of each bell crank member, and a member connecting the freeends of saidchains, said rings under the influ- I ence of aforce normally acting upon said member being relatively rotated about said plvot-into a position, in which the openlngs in said rings are displaced about half a turn relative'to each other.

In testimony whereof, I have signed my name to this specification.

ANDERS JOHNSSON.

65 substantially equal diameter, and each hav 

